<!DOCTYPE HTML>
<html>
<head>
  <title>MSE: check that duration change behaves properly</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="mediasource.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

runWithMSE(function (ms, v) {
  ms.addEventListener("sourceopen", function () {
    var sb = ms.addSourceBuffer("video/webm");

    fetchWithXHR("seek.webm", function (arrayBuffer) {
      sb.appendBuffer(new Uint8Array(arrayBuffer, 0, 318));
      once(v, "loadedmetadata")
      .then(function() {
        is(v.duration, ms.duration, "video duration is mediasource one");
        try {
          ms.duration = 0;
        } catch (e) { ok(false, "must not throw as operation is valid"); }
        is(v.duration, 0, "reducing duration with no data buffered is valid");
        sb.appendBuffer(new Uint8Array(arrayBuffer, 318));
        // Adding more data will fire durationchange.
        once(sb, "updateend")
        .then(function() {
          ok(true, "got updateend");
          // XXX: Duration should be exactly 4.0, see bug 1065207.
          ok(Math.abs(v.duration - 4) <= 0.002, "Video has correct duration");
          var error = false;
          try {
            ms.duration = 0;
          } catch (e) {
            ok(true, "must use remove for range removal");
            is(e.name, "InvalidStateError", "Error is InvalidStateError");
            error = true;
          }
          ok(error, "got an error");
          ok(Math.abs(v.duration - 4) <= 0.002, "Video has correct duration");
          try {
            ms.duration = 10;
          } catch (e) { ok(false, "must not throw as setting duration past data is valid"); }
          is(v.duration, 10, "extending duration is always valid");
          // The last sample has a start time of 3.967000s and a end time of 4.001 (see bug 1065207).
          try {
            ms.duration = 3.967000;
          } catch (e) { ok(false, "setting duration with >= highest frame presentation time is valid"); }
          is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
          try {
            ms.duration = 3.97;
          } catch (e) { ok(false, "setting duration with >= highest frame presentation time is valid"); }
          is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
          error = false;
          try {
            ms.duration = 3.96;
          } catch (e) {
            ok(true, "setting duration with < highest frame presentation time is not valid");
            is(e.name, "InvalidStateError", "Error is InvalidStateError");
            error = true;
          }
          ok(error, "got an error");
          is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
          error = false;
          try {
            ms.duration = -1;
          } catch (e) {
            ok(true, "can't set a negative duration");
            is(e.name, "TypeError", "Error is TypeError");
            error = true;
          }
          ok(error, "got an error");
          sb.remove(sb.buffered.end(0), Infinity);
          is(sb.updating, true, "updating is true")
          error = false;
          try {
            ms.duration = Infinity;
          } catch (e) {
            ok(true, "setting the duration while updating is not allowed");
            is(e.name, "InvalidStateError", "Error is InvalidStateError");
            error = true;
          }
          ok(error, "got an error");
          error = false;
          try {
            sb.abort();
          } catch (e) {
            ok(true, "Can't use abort while range removal is in progress");
            is(e.name, "InvalidStateError", "Error is InvalidStateError");
            error = true;
          }
          ok(error, "got an error");
          is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
          once(sb, "updateend", () => ms.endOfStream());
        });
      });
    });
  });
  ms.addEventListener("sourceended", function () {
    SimpleTest.finish();
  });
});

</script>
</pre>
</body>
</html>
